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* Copyright© 2000 - 2018 SuperMap Software Co.Ltd. All rights reserved.
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<html>
<head>
    <meta charset="UTF-8">
    <title data-i18n="resources.title_landuseUnique"></title>
    <script type="text/javascript" src="../../dist/openlayers/include-openlayers.js"></script>
    <style type="text/css">
        .legendItemHeader,
        .legendItemValue {
            width: 120px;
            height: 18px;
            font-size: 14px;
        }
    </style>
</head>
<body style=" margin: 0;overflow: hidden;background: #fff;width: 100%;height:100%;position: absolute;top: 0;">
<div id="map" style="margin:0 auto;width: 100%;height: 100%">
    <div style="z-index: 100;position: relative;width: 272px;float:right">
        <div id="infoBox" class="panel panel-primary infoPane"
             style="width:272px;margin-top: 250px;position: absolute;fontSize:14px;display: none;float:right">
            <div class="panel-heading">
                <h5 class='panel-title text-center' data-i18n="resources.text_attributeTable"></h5>
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            <div id="infoContent" class="panel-body content">
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        <div class="panel panel-primary legend" style="width:272px;margin-top: 400px;position: absolute;float:right">
            <div id="mapLegend" class="panel-heading">
                <h5 class='panel-title text-center'>
                    <span data-i18n="resources.text_legend"></span>
                </h5>
            </div>
            <div class="panel-body text-center">
                <table>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_landType"></td>
                        <td class="legendItemValue" data-i18n="resources.text_color"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_grassland"></td>
                        <td class="legendItemValue" style="background: #C1FFC1"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_city"></td>
                        <td class="legendItemValue" style="background: #CD7054"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_shrub"></td>
                        <td class="legendItemValue" style="background: #7CCD7C"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_dryLand"></td>
                        <td class="legendItemValue" style="background: #EE9A49"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_lakeReservoir"></td>
                        <td class="legendItemValue" style="background: #8EE5EE"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_economicForest"></td>
                        <td class="legendItemValue" style="background: #548B54"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_desert"></td>
                        <td class="legendItemValue" style="background: #DEB887"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_irrigatedLand"></td>
                        <td class="legendItemValue" style="background: #E0FFFF"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_paddyField"></td>
                        <td class="legendItemValue" style="background: #388E8E"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_timberForest"></td>
                        <td class="legendItemValue" style="background: #556B2F"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_swamp"></td>
                        <td class="legendItemValue" style="background: #2F4F4F"></td>
                    </tr>
                    <tr>
                        <td class="legendItemHeader" data-i18n="resources.text_DefaultStyle"></td>
                        <td class="legendItemValue" style="background: #ABABAB"></td>
                    </tr>
                </table>
            </div>
        </div>
    </div>
</div>
<script type="text/javascript" include="bootstrap,jquery" src="../js/include-web.js"></script>
<script type="text/javascript">
    var map, options, themeLayer, themeSource,
        baseUrl = (window.isLocal ? window.server : "http://iclsvr.supermap.io") + "/iserver/services/map-jingjin/rest/maps/京津地区地图",
        url2 = (window.isLocal ? window.server : "http://iclsvr.supermap.io") + "/iserver/services/data-jingjin/rest/data",
        extent = [104.07, 30.54, 119.51, 42.31];
    new ol.supermap.MapService(baseUrl).getMapInfo(function (serviceResult) {
        var mapJSONObj = serviceResult.result;
        map = new ol.Map({
            target: 'map',
            controls: ol.control.defaults({attributionOptions: {collapsed: false}})
                .extend([new ol.supermap.control.Logo()]),
            view: new ol.View({
                center: [116.85, 39.79],
                zoom: 8,
                projection: "EPSG:4326",
                extent: extent
            })
        });
        options = ol.source.TileSuperMapRest.optionsFromMapJSON(baseUrl, mapJSONObj);
        options.origin = [104.07, 42.31];
        var layer = new ol.layer.Tile({
            source: new ol.source.TileSuperMapRest(options)
        });
        map.addLayer(layer);

        map.once('postrender', function () {
            var getFeatureParam, getFeatureBySQLService, getFeatureBySQLParams;
            getFeatureParam = new SuperMap.FilterParameter({
                name: "Jingjin",
                attributeFilter: "SMID > -1"
            });
            getFeatureBySQLParams = new SuperMap.GetFeaturesBySQLParameters({
                queryParameter: getFeatureParam,
                toIndex: 500,
                datasetNames: ["Jingjin:Landuse_R"]
            });
            getFeatureBySQLService = new SuperMap.GetFeaturesBySQLService(url2, {
                format: SuperMap.DataFormat.ISERVER,
                eventListeners: {"processCompleted": processCompleted, "processFailed": processFailed}
            });
            getFeatureBySQLService.processAsync(getFeatureBySQLParams);
        });
    })

    function processCompleted(getFeaturesEventArgs) {
        var result = getFeaturesEventArgs.result;
        var feas = [];
        if (result && result.features) {
            var features = result.features
            var IHFeas = []; //岛洞多面
            for (var i = 0, len = features.length; i < len; i++) {
                var feature = features[i];
                var smid = feature.fieldValues[0];
                if (smid === "86" || smid === "87" || smid === "89") {
                    // islandHoleHandlerForFeature 处理岛洞面
                    IHFeas.push(islandHoleHandlerForFeature(feature));
                }
                else {
                    feas.push(feature);
                }
            }
            // 岛洞多面要素必需在其他要素之前添加
            feas = IHFeas.concat(feas);
            themeSource = new ol.source.Unique("ThemeLayer", {
                map: map,
                attributions: " ",
                style: {
                    shadowBlur: 3,
                    shadowColor: "#000000",
                    shadowOffsetX: 1,
                    shadowOffsetY: 1,
                    fillColor: "#FFFFFF"
                },
                isHoverAble: true,
                highlightStyle: {
                    stroke: true,
                    strokeWidth: 2,
                    strokeColor: 'blue',
                    fillColor: "#00F5FF",
                    fillOpacity: 0.2
                },
                themeField: "LANDTYPE",
                styleGroups: [
                    {
                        value: "草地",
                        style: {
                            fillColor: "#C1FFC1"
                        }
                    },
                    {
                        value: "城市",
                        style: {
                            fillColor: "#CD7054"
                        }
                    },
                    {
                        value: "灌丛",
                        style: {
                            fillColor: "#7CCD7C"
                        }
                    },
                    {
                        value: "旱地",
                        style: {
                            fillColor: "#EE9A49"
                        }
                    },
                    {
                        value: "湖泊水库",
                        style: {
                            fillColor: "#8EE5EE"
                        }
                    },
                    {
                        value: "经济林",
                        style: {
                            fillColor: "#548B54"
                        }
                    },
                    {
                        value: "沙漠",
                        style: {
                            fillColor: "#DEB887"
                        }
                    },
                    {
                        value: "水浇地",
                        style: {
                            fillColor: "#E0FFFF"
                        }
                    },
                    {
                        value: "水田",
                        style: {
                            fillColor: "#388E8E"
                        }
                    },
                    {
                        value: "用材林",
                        style: {
                            fillColor: "#556B2F"
                        }
                    },
                    {
                        value: "沼泽",
                        style: {
                            fillColor: "#2F4F4F"
                        }
                    },
                    {
                        value: "缺省风格",
                        style: {
                            fillColor: "#ABABAB"
                        }
                    }
                ]
            });
            themeSource.addFeatures(feas);
            //专题图层 mousemove 事件
            themeSource.on('mousemove', function (e) {
                if (e.target && e.target.refDataID) {
                    document.getElementById("infoBox").style.display = "block";
                    var fid = e.target.refDataID;
                    var fea = themeSource.getFeatureById(fid);
                    if (fea) {
                        document.getElementById("infoContent").innerHTML = "";
                        document.getElementById("infoContent").innerHTML += "ID: " + fea.attributes.SMID + "<br/>";
                        document.getElementById("infoContent").innerHTML += resources.text_landType+": " + fea.attributes.LANDTYPE + "<br/>";
                        document.getElementById("infoContent").innerHTML += resources.text_area + parseFloat(fea.attributes.SMAREA).toFixed(5) + "<br/>";
                    }
                }
                else {
                    document.getElementById("infoContent").innerHTML = "";
                    document.getElementById("infoBox").style.display = "none";
                }
            });

            var pointerInteraction = new ol.interaction.Pointer({
                handleMoveEvent: function (event) {
                    themeSource.fire('mousemove', event);
                }
            });
            map.addInteraction(pointerInteraction);
            themeLayer = new ol.layer.Image({
                source: themeSource
            });
            themeLayer.setOpacity(0.8);
            map.addLayer(themeLayer);
        }
        document.getElementById("mapLegend").style.display = "block";
    }

    function processFailed(e) {
        alert(e.error.errorMsg);
    }

    /*
     * Method: islandHoleHandlerForFeature。
     * 要素岛洞处理。
     *
     * 多面中，一个子面包含另一个子面，则被包含子面处理为岛洞。
     *
     * Parameters:
     * multiPolygon - {<SuperMap.Feature.Vector>} 需要进行岛洞处理的要素。
     *
     * Returns:
     * {<SuperMap.Feature.Vector>} 处理后的要素。
     */
    function islandHoleHandlerForFeature(feature) {
        if (feature.geometry instanceof SuperMap.Geometry.MultiPolygon && feature.geometry.components.length > 1) {
            var newGeometry = islandHoleHandlerForMultiPolygon(feature.geometry);
            feature.geometry = newGeometry;
        }
        return feature;

        /*
         * Method: islandHoleHandlerForMultiPolygon
         * 处理误判为岛洞的多面。
         *
         * iClient 在解析 iServer 数据时，默认将面要素处理为 MultiPolygon 类型，但有的面要素带有岛洞，
         * 这种情况下应该做特殊处理，本函数可以对一个多面进行岛洞处理，并返回新的多面。
         *
         * Parameters:
         * multiPolygon - {<SuperMap.Geometry.MultiPolygon>} 需要进行岛洞处理的多面。
         *
         * Returns:
         * {<SuperMap.Geometry.MultiPolygon>} 处理后的多面。
         */
        function islandHoleHandlerForMultiPolygon(multiPolygon) {
            if (multiPolygon instanceof SuperMap.Geometry.MultiPolygon && multiPolygon.components.length > 1) {
                var mPTmp = multiPolygon.clone();
                var componentsPolygons = mPTmp.components;

                //洞面关系数组
                var polygonHoleGroup = [];

                for (var k = 0, len = componentsPolygons.length; k < len; k++) {
                    var geoPolygon = componentsPolygons[k];

                    //不处理已经是岛洞的面
                    if (geoPolygon.components.length = 1) {
                        var lineRings = geoPolygon.components[0];

                        //将每个点放到面中进行判断
                        for (var j = 0, len1 = componentsPolygons.length; j < len1; j++) {
                            if (componentsPolygons[j].components.length != 1) continue;

                            if (j != k) {
                                var polygonGeoComp = componentsPolygons[j].components[0].components;

                                //假设此面为岛洞
                                var isAllPoiIn = true;

                                for (var i = 0, len2 = geoPolygon.components.length; i < len2; i++) {
                                    var point = lineRings.components[i];
                                    if (isPointInPoly(point, polygonGeoComp) == false) {
                                        isAllPoiIn = false;
                                        continue;
                                    }
                                }

                                //确定并记录洞面关系
                                if (isAllPoiIn == true) {
                                    var polygonHole = [j, k];
                                    polygonHoleGroup.push(polygonHole);
                                }

                            }
                        }
                    }
                    else {
                        continue;
                    }
                }
                // 根据洞面信息重构多面 Geometry。
                var bPsTmp = [];
                var hPsTmp = [];
                for (var m = 0, len3 = polygonHoleGroup.length; m < len3; m++) {
                    bPsTmp.push(polygonHoleGroup[m][0]);
                    hPsTmp.push(polygonHoleGroup[m][1]);
                }

                //岛洞基础面
                var bPs = delRepeatInArray(bPsTmp);
                //洞面
                var hPs = delRepeatInArray(hPsTmp);

                //独立面
                var iPs = [];
                //查找独立面
                for (var isIPs = 0, compLen = componentsPolygons.length; isIPs < compLen; isIPs++) {
                    var isNoHP = true;

                    for (var o = 0, len = bPs.length; o < len; o++) {
                        if (isIPs == bPs[o]) {
                            isNoHP = false;
                            break;
                        }
                    }

                    if (isNoHP == true) {
                        for (var o = 0, len = hPs.length; o < len; o++) {
                            if (isIPs == hPs[o]) {
                                isNoHP = false;
                                break;
                            }
                        }
                    }

                    if (isNoHP == true) {
                        iPs.push(isIPs);
                    }
                }

                //新洞面信息
                var hpInfo = [];

                //组织新geometry所需要的信息
                for (var o = 0, len4 = bPs.length; o < len4; o++) {
                    var ph = [];
                    ph.push(bPs[o]);
                    for (var m = 0, len3 = polygonHoleGroup.length; m < len3; m++) {
                        if (bPs[o] == polygonHoleGroup[m][0]) {
                            ph.push(polygonHoleGroup[m][1]);
                        }
                    }

                    if (ph.length > 1) {
                        hpInfo.push(ph);
                    }
                }


                var newComponents = [];
                //岛洞子面处理
                for (var m = 0, len3 = hpInfo.length; m < len3; m++) {
                    var geoP = hpInfo[m];
                    var newLineRings = [];
                    for (var n = 0, len6 = geoP.length; n < len6; n++) {
                        newLineRings.push(componentsPolygons[geoP[n]].components[0]);
                    }
                    var newGeoPolygon = new SuperMap.Geometry.Polygon(newLineRings);
                    newComponents.push(newGeoPolygon)
                }

                //独立子面处理
                for (var s = 0, len7 = iPs.length; s < len7; s++) {
                    var is = iPs[s];
                    newComponents.push(componentsPolygons[is])
                }

                multiPolygon.components = newComponents;
            }

            return multiPolygon;
        }

        /*
         * Method: delRepeatInArray
         * 删除数组中的重复元素。
         *
         * Parameters:
         * arr - {Array} 要进行重复元素删除的数组。
         *
         * Returns:
         * {Array} 无重复元素的数组。
         */
        function delRepeatInArray(arr) {
            var newArray = [];
            var provisionalTable = {};
            for (var i = 0, a; (a = arr[i]) != null; i++) {
                if (!provisionalTable[a]) {
                    newArray.push(a);
                    provisionalTable[a] = true;
                }
            }
            return newArray;
        }

        /*
         * Method: PointInPoly
         * 判断一个点是否在多边形里面。(射线法)
         *
         * Parameters:
         * pt - {Object} 需要判定的点对象，该对象含有属性x(横坐标)，属性y(纵坐标)。
         * poly - {Array(Objecy)}  多边形节点数组。例如一个四边形：[{"x":1,"y":1},{"x":3,"y":1},{"x":6,"y":4},{"x":2,"y":10},{"x":1,"y":1}]。
         *
         * Returns:
         * {Boolean} 点是否在多边形内。
         */
        function isPointInPoly(pt, poly) {
            for (var isIn = false, i = -1, l = poly.length, j = l - 1; ++i < l; j = i)
                ((poly[i].y <= pt.y && pt.y < poly[j].y) || (poly[j].y <= pt.y && pt.y < poly[i].y))
                && (pt.x < (poly[j].x - poly[i].x) * (pt.y - poly[i].y) / (poly[j].y - poly[i].y) + poly[i].x)
                && (isIn = !isIn);
            return isIn;
        }
    }
</script>
</body>
</html>